1. Noun

   small dish (usu. one of several accompanying rice); side dish

   Food, cookingUsually written using kana alone

2. fill; fill-in (drumming)

   MusicUsually written using kana aloneColloquial

3. jack-off material; something to masturbate to

   Usually written using kana aloneVulgar expression or wordSlangoft. as オカズ

Also written お数【おかず】okazu